Abstract: Improved X-ray detectors are provided in a cross-strip geometry with better resolution than the electrode spacing. The basic idea is analog charge cloud reconstruction. An important practical aspect of this work is rotating the electrode pattern by about 45 degrees relative to the detector slab, which provides several performance benefits (equal length for all electrodes and greater ease of integration into vertical stacks etc.) that are expected to be especially relevant to achieve high performance from analog charge cloud reconstruction.

Abstract: Improved X-ray detectors are provided in a cross-strip geometry with better resolution than the electrode spacing. The basic idea is analog charge cloud reconstruction. An important practical aspect of this work is rotating the electrode pattern by about 45 degrees relative to the detector slab, which provides several performance benefits (equal length for all electrodes and greater ease of integration into vertical stacks etc.) that are expected to be especially relevant to achieve high performance from analog charge cloud reconstruction.

Abstract: A method for the detection of ionizing events utilizing a co-planar grids sensor comprising a semiconductor substrate, cathode electrode, collecting grid and non-collecting grid. The semiconductor substrate is sensitive to ionizing radiation. A voltage less than 0 Volts is applied to the cathode electrode. A voltage greater than the voltage applied to the cathode is applied to the non-collecting grid. A voltage greater than the voltage applied to the non-collecting grid is applied to the collecting grid. The collecting grid and the non-collecting grid are summed and subtracted creating a sum and difference respectively. The difference and sum are divided creating a ratio. A gain coefficient factor for each depth (distance between the ionizing event and the collecting grid) is determined, whereby the difference between the collecting electrode and the non-collecting electrode multiplied by the corresponding gain coefficient is the depth corrected energy of an ionizing event.